Recent content by xtd

Neither (1) nor (4) has to be true by the given assumptions. One of those is true and one false but none is definitely true - in contrast to (3). And btw, if (4) is true, (2) can not only be true but is. But as the question is, which one of these has to be true, the answer is (3) and only (3)...

Sure. Probably the best way to solve these kinds of puzzles is by trying to categorize the information (which kind of information does a statement give), visualize the dwarves and apply the given information. That may sound hard in two minutes but if you are given so little time, you can expect...

No it does not. W definitely is smart and short. That means G and T are both definitely happy. Since two are smart and two are short, either G is smart and T short or vice versa. Therefore W and G share exactly one property, be that smart or short. Edit: To make it clear, I repost my original...

If they share exactly one, they obviously share at least one, don't they? :)

Before getting into too much detail about that and inventing paint that practically works as a force field, how about generalizing the problem like: You have two balls A and B made from different metals of the same size. The metals only differ in volume, so that although one of the balls is...

Maybe I don't get this but haven't all the questions here already been answered around page 4 or 5? So why do people keep posting the same answer? << You could see that as a sociological tricky question, although I'm afraid I don't have an answer for it.

It does not matter which property the two share as the given answer (3) only states that they share exactly one property and that has to be true if W has properties a and b and G has properties c and a or b.

arildno, asking that question is not enough as it only tells us that (3) must be right but not why (1), (2) and (4) are not correct answers [Actually it does, as the question asks 'which one has to be true']. As you - some_one - already stated, the two other properties can be distributed on G...

Edit: Sorry, didn't see that people are expected to give hints instead of solutions. Some_one, arildno gave you the starting points so just try to answer his questions and keep going from there